Precautions for the Use of Supercapacitors

Apr. 06, 2022

Supercapacitors, or electrochemical capacitors, are a new type of electrochemical energy storage device. They do not undergo chemical reactions during the energy storage process, so supercapacitors can be charged and discharged hundreds of thousands of times. And it has the advantages of large capacitance, high power density, short charging and discharging time, long service life, and wide operating temperature range. Supercapacitors are used in various fields, such as electric vehicles, sensors, and backup power for computer memory.

Although the advantages of supercapacitors are larger than ordinary capacitors and stronger than ordinary batteries, there are still a few things to pay attention to when using them.

Supercap 2.7V 360F.jpg


Supercapacitors have fixed electrodes, and their polarity must be confirmed before use. Accidental reverse use for a short time will not have any effect, but long-term reverse use without adjustment will cause the supercapacitor's service life to decrease rapidly.

2. Rated Voltage

The voltage that the supercapacitor is subjected to under working conditions must not exceed its rated voltage, otherwise it will cause the decomposition of its electrolyte, the capacitor will heat up, the capacitance will decrease, and the service life will be shortened. So pay attention to the rated voltage when choosing a super capacitor.

3. Temperature:

The operating temperature range of supercapacitors is wide, ranging from -40°C to +70°C. It is resistant to low temperature but not high temperature. Using in high temperature environment will lead to a decrease in capacitance. Therefore, supercapacitors need to be kept away from heat sources during use.

4. Gas:

Supercapacitors should not be placed in environments with relative humidity greater than 85% or containing toxic gases. These environments will lead to corrosion of lead wires and capacitor casings, resulting in open circuit.

5. Storage:

Supercapacitors cannot be placed in a high temperature and high humidity environment. They should be stored in an environment with a temperature of -30+50°C and a relative humidity of less than 60% to avoid sudden temperature rises and drops, resulting in damage to the supercapacitor.

The above are the matters needing attention in the use of supercapacitors. Paying attention to these matters in the process of use can avoid many problems and troubles, and also allow the performance of supercapacitors to be brought into full play.

When purchasing supercapacitors, you must choose a regular manufacturer. To purchase electronic components, you need to find a reliable manufacturer first. Dongguan Zhixu Electronic Co., Ltd. (also JYH HSU(JEC)) has a full range of varistor and capacitor models with guaranteed quality. JEC has passed ISO9001:2015 quality management system certification. Welcome to contact us for technical problems or business cooperation.

Contact Us

+86 181 2299 5593

+86 18122995593

+86 769 8831 3605

Beside Luchong Bridge, Hou Road, Caibai Village, Daojiao Town, Dongguan, Guangdong, China

Request a Quote